224666642 has 4 divisors (see below), whose sum is σ = 336999966. Its totient is φ = 112333320.

The previous prime is 224666639. The next prime is 224666671. The reversal of 224666642 is 246666422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 162588001 + 62078641 = 12751^2 + 7879^2 .

It is a junction number, because it is equal to n+sod(n) for n = 224666596 and 224666605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56166659 + ... + 56166662.

Almost surely, 2^224666642 is an apocalyptic number.

224666642 is a deficient number, since it is larger than the sum of its proper divisors (112333324).

224666642 is a wasteful number, since it uses less digits than its factorization.

224666642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112333323.

The product of its digits is 165888, while the sum is 38.

The square root of 224666642 is about 14988.8839477794. The cubic root of 224666642 is about 607.9196732090.

It can be divided in two parts, 22 and 4666642, that added together give a palindrome (4666664).

The spelling of 224666642 in words is "two hundred twenty-four million, six hundred sixty-six thousand, six hundred forty-two".